Energy storage mobile charging adapter and energy storing method for the same

Abstract

An energy storage mobile charging adapter is disclosed, in which the output terminal of an AC / DC isolated converter circuit board are connected with input terminals of a charging adapter circuit board, a commercial power plug is connected with the input terminals of the AC / DC isolated converter circuit board, characterized in that, a lithium chargeable battery is electrically connected with the output terminal of the AC / DC isolated converter circuit board and the input terminals of a charging adapter circuit board through a lithium battery protection circuit board, the charging adapter plug is electrically connected to the output terminals of the charging adapter circuit board, and all of the above components are sealed in a plastic housing.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a battery charger, and more particularly to an energy storage mobile charging adapter and an energy storing method for the same.[0003]2. Description of the Prior Art[0004]Conventionally, a mobile phone is recharged by connecting a charging adapter to the commercial power, with the limitation of time, space and some other conditions. Thus, the mobile phone cannot be recharged during outside use and locomotion. The mobile phone battery is usually not recharged in time, so that the electric power will be exhausted halfway, thus, affecting information communication.[0005]The present invention has arisen to mitigate and / or obviate the afore-described disadvantages.SUMMARY OF THE INVENTION[0006]The primary objective of the present invention is to provide an energy-storage movable charging adapter and an energy storing method for the same, so as to achieve the charger and storage functions of t...

AI Technical Summary

Benefits of technology

[0014]Protecting lithium battery: the positive terminal of the AC / DC isolated converter circuit board is connected to the positive electrode of the lithium chargeable battery, and the negative terminal is connected to the negative electrode of the lithium chargeable battery through the switch circuit U2. The positive and negative electrodes of the lithium chargeable battery are connected to the testing terminal of the circuit IC1. When voltage outputted from the AC / DC isolated converter circuit board is greater than the voltage of the lithium chargeable battery, the lithium chargeable battery can be recharged. When the voltage of the testing terminal of IC1 is greater than the predetermined voltage, U2 can be cut off by the control terminal, thus terminating recharging the lithium chargeable battery to prevent over-charge. The lithium chargeable battery can also supply power to the charging adapter circuit though U2. When the voltage of the lithium chargeable battery is smaller than the predetermined voltage of IC1, IC1 can cut off U2 through the control terminal, thus preventing the over-discharge of the lithium chargeable battery.

[0015]Charging and adapting: the PWM pulse generated from the circuit IC2 makes the field effect transistor Q3 work in the switching state. When the field effect transistor Q3 is conducted, the direct positive current supplied from the AC / DC isolated converter circuit or the lithium battery protection circuit flows through the coil L1 and the field effect transistor Q3 to the negative terminal, and the coil L1 stores magnetic energy. When the field effect transistor Q3 is cut off, the magnetic energy stored in the magnetic core of L1 is converted into the electromotive force. The electromotive force is superposed to the DC voltage supplied from the input terminal in the same direction to recharge the capacitor by the rectifier diode with a higher voltage and supply electric power to the charging adapter jack. The electric power flows through the outside load and then back to the negative terminal of the charging adapter jack. The current flows through the resistor and then back to the negative electrode of the input terminal. When the voltage of the two terminals of the charging adapter jack changes, the changing will be feedback to the voltage testing terminal of IC2 through the resistor. IC2 will change the pulse width of Q3, so as to keep the output voltage stable. When the voltage drop caused by the current flowing through the resistor and then back to the input terminal exceeds a certain predetermined value of the current testing terminal of IC2, IC2 will also change the pulse width of Q3, so as to decrease the output voltage, so that, the output current is kept at a certain predetermined value to keep the output voltage and current of the charging adapter jack at certain predetermined values, thus realizing charging and adapting.

[0016]When the commercial is available, the charging adapter of a common mobile phone can be connected to the commercial power for recharging the mobile phone, and at the same time, the chargeable battery in the recharging adapter can be recharged to store power, so that when the mobile phone is taken outside, the lithium chargeable battery in the charging adapter can be used to supply power to recharge the mobile phone. The present invention has the advantages, such as: high integration, simplified structure, portable and convenient to use.

Problems solved by technology

Thus, the mobile phone cannot be recharged during outside use and locomotion.

The mobile phone battery is usually not recharged in time, so that the electric power will be exhausted halfway, thus, affecting information communication.

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